Josh is correct in naming Anderson as the source I had in mind when I added that bit about Schwartz testifying at Stride's inquest. When Anderson wrote the letter, he may not have known police failed to offer Schwartz as a witness since his non-identification would not have helped their case (it seems two other key witnesses apparently were not called). It's also possible Schwartz testified in a secret session, although that seems doubtful. It's become acceptable to write Anderson off as unreliable when he says something you don't agree with, but here there's no question he named "Schwartz" and not "Lawende." Incidentally, if Anderson was in error, Swanson made no effort to correct it. There's also a section on Schwartz in "A to Z" which discusses this matter fully, and until new evidence is found, I'll rely on the experts who wrote that as the best source on Schwartz.

Dr. John

__________________
"We reach. We grasp. And what is left at the end? A shadow."
Sherlock Holmes, The Retired Colourman

Wynne Baxter gave a very detailed summing up on the last day of the inquest.
The CORONER, in summing up, said the jury would probably agree with him that it would be unreasonable to adjourn this inquiry again on the chance of something further being ascertained to elucidate the mysterious case on which they had devoted so much time.
Note something further being ascertained. So if Schwartz had gone missing or was difficult to find Wynne Baxter would certainly have adjourned the inquest again. Not only that but he goes into detail of the sightings of Marshall, Pc Smith and most tellingly James Brown. He then sums up whether they all saw the victim with the murderer or not,the time differences, and the differences in their descriptions, without debunking any of them. This is important with Brown because he allegedly saw Stride at the same time as Schwartz. Surely this would cast doubt on Brown seeing the victim but nowhere does he say or even hint at it. IE There is some evidence which is still being investigated which may suggest that the victim was seen in the company of another man the same time as the witness James Brown was alleged to have seen her. This would protect Schwartz whilst at the same time opening up the possibility that Brown was mistaken. Maybe just maybe the veracity of Schwartz was being investigated during the adjournment. But by the 23rd [Swanson's report is the 19th] he was considered to be too unreliable to take the stand, so the summing up went ahead.

Wynne Baxter gave a very detailed summing up on the last day of the inquest.
The CORONER, in summing up, said the jury would probably agree with him that it would be unreasonable to adjourn this inquiry again on the chance of something further being ascertained to elucidate the mysterious case on which they had devoted so much time.
Note something further being ascertained. So if Schwartz had gone missing or was difficult to find Wynne Baxter would certainly have adjourned the inquest again. Not only that but he goes into detail of the sightings of Marshall, Pc Smith and most tellingly James Brown. He then sums up whether they all saw the victim with the murderer or not,the time differences, and the differences in their descriptions, without debunking any of them. This is important with Brown because he allegedly saw Stride at the same time as Schwartz. Surely this would cast doubt on Brown seeing the victim but nowhere does he say or even hint at it. IE There is some evidence which is still being investigated which may suggest that the victim was seen in the company of another man the same time as the witness James Brown was alleged to have seen her. This would protect Schwartz whilst at the same time opening up the possibility that Brown was mistaken. Maybe just maybe the veracity of Schwartz was being investigated during the adjournment. But by the 23rd [Swanson's report is the 19th] he was considered to be too unreliable to take the stand, so the summing up went ahead.

The answer to all this is simple, if Stride was prostituting herself in and around Berner Street, she as likely as not in doing so might have accosted all men who crossed her path, some may have given her a verbal and physical no thanks and pushed her away as was described by Schwartz. There is no way a killer would have wanted to attract that much attention in an area where people were moving about in numbers.

Scott: I don't know if this is the slightest bit interesting, but regarding our old friend Daniel Kosminski:

"Robert Schroeder, a German, was again placed at the bar on a charge of stealing from his employer, D. Kozminski, hairdresser, of 8, Church-Street, Rotherhithe, a gold Albert chain and gold ring, having been several times remanded, and the property not having been found, Mr. Balguy discharged the prisoner." - Kentish Mercury, 24 May 1879.

...neither the B.S. man or any other suspect was in custody as Stride's alleged killer.

We don't know the names of all of the men in custody as Stride's alleged killer, or any of the other victims of that matter.

Back to Kosminski: I had some notes that Woolf Kosminski was born in Kolo, Poland, as was Daniel Kosminski. There weren't that many Kosminskis in Kolo, so the possibility remains that Daniel and Woolf may have been related.